Recording apparatus

Details Recording apparatus Recording apparatus

1991-06-07

1994-08-02

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318696, G05B 1940

Patent

active

053349202

ABSTRACT:
A recording apparatus which has reduced the speed variation and vibration of the motor uses a step motor as a driving source for a carrier for carrying a carriage mounted with a recorder or a recording medium. The apparatus includes a controller that, on accelerating the step motor, controls the step motor so that the step motor is driven with a shorter period than the mechanical time constant of the carrier when the rotary speed of the motor is less than a specified value, and so that the motor is driven with a longer period than the mechanical time constant when the rotary speed of the motor is more than the specified value.

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patent: 5029264 (1991-07-01), Ito et al.
Patent Abstracts of Japan, vol. 8, No. 80 (M289) (1517) Apr. 12, 1984-Abstract of Japanese Patent No. 58-224776.
IBM Technical Disclosure Bulletin, vol. 21, No. 3, Aug. 1978, "Automatic Gain Control for DC Servo System," Morgan, et al.

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